Standard grading rules for Canadian lumber (2025 edition) - Supplement No. 1 (effective May 1, 2026)
Publication Year
2025
Document Status
Current
Abstract
Supplement issued to revise the 2025 edition of the NLGA Standard Grading Rules for Canadian Lumber (specifically paragraphs 39, 44, 121a, 122a, 122b, 122c, 124a, 124b, 124c, 124d, 715, 717, 725) and NGR Interpretations (section 1.17).
Document History
Effective from May 1, 2026.
Publisher Information
National Lumber Grades Authority
The National Lumber Grades Authority (NLGA) is responsible for issuance, publication, amendment and interpretation of Canadian lumber grading rules and standards.
